Ernest Scared Stupid is a 1991 American comedy horror film directed by John Cherry and starring Jim Varney. It is the fifth film to feature the character Ernest P. Worrell, and the fourth film in the Ernest series. In the film, Ernest unwittingly unleashes an evil troll upon a small town on Halloween night and helps the local children fight back. It was shot in Nashville, Tennessee like its predecessors Dr. Otto and the Riddle of the Gloom Beam, Ernest Goes to Camp, Ernest Saves Christmas, and Ernest Goes to Jail.

Ernest P. Worrell is a fictional character that was portrayed by American actor Jim Varney in a series of television commercials and then later in a television series and a series of feature films.